Geräte Informationen:

1. Personal Copier with a Zoom Function and a Fixed Copyboard
• You can choose either a default enlargement/reduction ratio or any ratio between 70% and
141% in 1% increments.
2. Ecology-Conscious
• The use of a roller charging method has resulted in a considerable reduction of ozone: 0.01
ppm or less on the average, 0.02 ppm or less at maximum (1/100 to 1/1000 compared with
existing Canon machines).
3. SURF Fixing Assembly
• The wait time is 0 sec (at 20°C room temperature), enabling speedy copying work immediately
after power-on.
4. Various Paper Sizes
• The paper may be between A4 (LGL) and A5 (STMT) (*Using the universal cassette).
• In manual feed mode, paper may be as large as A4 (LGL) or as small as a business card.
5. All-in-One Cartridge for Simple Maintenance
• The photosensitive drum, toner case, charging roller, developing assembly, and cleaning assembly
are constructed as a single entity (cartridge).
The user may expect quality copy images at all times as long as he/she performs simple
replacement/cleaning work.
6. Large Paper Source
• The source of paper may contain as many as 550 sheets of paper (500-sheet cassette +
multifeeder; multifeeder type).
7. Separate top unit
• The machine’s top unit may be opened to make jam removal easy.
8. ADF Type
• Continuous copying is possible with the use of the ADF.

This service manual has been prepared for the PC800/900 Series machines,
providing basic information used for servicing the machines in the field so as to ensure
their quality and performance.
This service manual consists of the following chapters:
Chapter 1 General Description introduces the machine's features, specifications,
names of parts, and how originals are reproduced.
Chapter 2 Basic Operation explains how copies are made on a step-by-step basis.
Chapter 3 Exposure System discusses the principles of operation used for the
machine's exposure system. It also explains the timing at which exposurerelated
mechanisms are operated, and shows how they may be
disassembled/assembled and adjusted.
Chapter 4 Image Formation System discusses the principles of operation used for the
machine's image formation system. It also explains the timing at which image
formation-related mechanisms are operated, and shows how they may be
disassembled/assembled and adjusted.
Chapter 5 Pick-Up/Feeding System discusses the principles of operation used for the
machine's pickup/feeding system. It also explains the timing at which pickup/
feeding-related mechanisms are operated, and shows how they may be
disassembled/assembled and adjusted.
Chapter 6 Fixing System discusses the principles of operation used for the machine's
fixing system. It also explains the timing at which fixing-related mechanisms
are operated, and shows how they may be disassembled/assembled and
adjusted.
Chapter 7 Externals/Auxiliary Mechanisms discusses the principles of operation used
for the machine's externals/auxiliary mechanisms. It also explains the timing
at which auxiliary mechanism-related mechanisms are operated, and shows
how they may be disassembled/assembled and adjusted.
Chapter 8 ADF explains the principles of operation of the ADF in view of electrical and
mechanical functions and in relation to their timing of operation. It also shows
how the unit may be disassembled/assembled and adjusted.
Chapter 9 Installation introduces requirements for the site of installation, and shows
how the machine may be installed using step-by-step instructions.
Chapter 10 Maintenance and Servicing provides tables of periodically replaced parts and
consumables/durables and scheduled servicing charts.
Chapter 11 Troubleshooting provides tables of maintenance/inspection, standards/
adjustments, and problem identification (image fault/malfunction).
Appendix contains a general timing chart and general circuit diagrams.